The main task of this final paper is to make a comparison of given object, computer and 3D printed models. Firstly the process of reverse engineering and all the essential features of that process are explained. After that, the 3D scanning process is described in detail, and the next few chapters explain the 3D scanning technologies that are most commonly used in the industry. The next step was to describe the process of 3D printing and certain technologies available in today’s world with adequate equipment. Through several chapters, all the important procedures that need to be implemented for each technology are described, as well as the advantages and disadvantages. The paper also lists certain materials that can be used to make 3D objects on a 3D printer. The final chapter on the practical part of the task describes all the procedures performed related to 3D scanning and 3D printing. After the obtained computer 3D model with the help of EinScan-SP 3D scanner, 3D printing of objects was performed with the help of the Original Prusa i3 MK3S printer. This last section describes the principles for scanning and printing items. The conclusion provides a review relating to the obtained 3D object and the actual object. The comparison was made by measuring the dimensions of both objects and on the basis of the external appearance visible to the naked eye.